JIECHENG 9 inch Hole Saw for Wood,Soft Metal,Drywall,Plasterboard and Plywood,229mm Bi-Metal Hole Saw with Arbor Mandrel

JIECHENG 9 inch Hole Saw for Wood,Soft Metal,Drywall,Plasterboard and Plywood,229mm Bi-Metal Hole Saw with Arbor Mandrel

High grade hole saw 9 inch with 3/8'' Hex shank Mandrel,the cutting depth is about 1.24 inch (32mm),it can make 9 inch diamteter holes. Heavy duty for making Cornhole Boards,air ducts,ceiling light,speakers,duct work,it can drill in drywall,wood ,plastic, gypsum board,aluminium,soft thin metal and rubber. very useful for Interior decoration, DIY tools, downlight installation. Good material:High Speed Steel M42 Bi-metal. with sharp teeth,cut the wood very easy and non binding clean edge. Notice: Please keep safe when operate the drilling work. it is better firstly slow speed,then higher. wear safety glasses it important for safe of eyes. and big hole should be low rotation speed. Rich configuration,Include 1pcs bimetal hole saw 9 inch,1pcs mandrel with pilot drill bit and spring,1pcs extra pilot drill bit,1pcs wrench. This item is mainly for all kinds of woods and soft material, but not for thick steel plate. The shank of arbor is hex,3/8"(9.5mm),it is distance between two sides. so it is for 10mm (3/8") drill chuck or larger chuck. HSS M42 Bi-metal 9 Inch Hole saw : 1.diameter 9" (229mm) 2.Cutting depth 1.24 inch (32mm) 3.include 1pcs bimetal hole saw 9 inch,1pcs mandrel with pilot drill bit and spring,1pcs extra pilot drill bit,1pcs wrench. 4.This hole saw of 9 inch is good for wood working, also can make some holes on thin soft steels. and the big mandrel is better for fixing the hole saw, so that it is more stable and efficient when drilling,and the service life for hole saw is longer 5.please use low rotation speed for these big hole saws in first, and later with higher speed. 6.It is useful to make 9 inch holes for cornhole boards, air ducts, ceiling lights, speakers and more